Patents by Inventor Raymond Czajaka

Raymond Czajaka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Serpentine ramp for a pinball game
    Patent number: 5938195
    Abstract: A serpentine ramp is rotatable about a horizontal axis between its center and its upper end to lift a pinball from a lower play surface to an upper play surface. A ball is directed from the lower surface into a ball receiving portion in the lower end of the ramp. This closes an optical switch causing the ramp to rotate between a receiving position and a discharge position. A ball disposed in the receiving portion rolls on the ramp to its upper end and then onto the upper surface. A second optical switch is closed by the return of the ramp to the receiving position which terminates the operation of the device.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: August 17, 1999
    Assignee: Williams Electronics Games Inc.
    Inventors: Python Anghelo, Raymond Czajaka, Dan K. P. Lee